Adjustable rear sight for a shotgun with a dovetail base



FIG. 1 is a view in rear perspective, showing the design for an adjustable rear sight for a shotgun with a dovetail base.

FIG. 2 is a view in rear elevation thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a view in front elevation thereof.

FIG. 6 is a view in left side elevation thereof; and,

FIG. 7 is a view in right side elevation thereof. 

I claim the ornamental design for an adjustable rear sight for a shotgun with a dovetail base, as shown. 